Weighing-scale.



W. SIMONSSON.

WEIGHING SCALE.

APPLICATION HLBD Amm, 1910 1 101,215. Patented June 23,1914. 3 SEEETSw-SHBBTJ,

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lll/ll W. SIMONSSON.

WBIGHING -SGALI'L urmonlol rum). 1211.2; 1910v K ,101,215, Patented June 23, 1914.

3 SHEETS-SHEET 2.

W; SIMONSSON.

WEIGHVING SCALE. APPLIGATIONTILBD ML2, 1910 1,101 ,215'. Patented June 23; 1914 3 SHEETS-.SHEET 3.

"4 .3. iff/@635 m VEN Tan lgss 13d r the pmi-si of 'dui imp tHe improve@ weighngnsml'f J may -Ileqvof this A not d site twin-understood fax hmlt parts`| and having -feet producedataoppo- Vsite sideg adjacent vto one e'nd and adapted. to reet upon a counter or the like', While its opposite end has an adjustable supporting or leveling means iuchiding a screw '4, the 'lower end ot which han an enlargement or shoe tpalso adapted for engagementwith the counter or other Support Whereon the A cal`c is rested.

.\t one end of the portion l is produced-a cylindrical portion t3. extended above and integrallv connected with said hase portion and chambeiedor- -hollowed interiorly for the recept-ion of certain of the operative' parts which have 'conmentions' extended down within thechainber or space, within said -b'a'se 4portiongand above said cylindrical casing portion 6 is extended' a segmentfshaped. flattened easing portion 7, chainbercd or hollowed internally for the recept-ion of the index mechanism which. ae herein shown. "includes a. plate 9 having certain coi'ic-entric segmental graduationsT one of which` 1l is intended to indicate weight,` While others, as 12, are -in- 'tended' to indicate diierent prices per pound Ior unit. of weight. The cylindricahand .eectoiushaped casing portions 6 and 7 are l hereinshown integrally connected, and one 'wall ot' euch. as 8 is removably held in relation to the easing, so that it may be conveniently separated from the hodv of thecas; ing oi: frame to afford unobstructed access to Tthe interior chambers ofeuchJ casing por,4

tions 6 and 7. The upper portion of such` wall S is also shown proi-ided with a 'glazed sight aperture v10, whereat `the gi'nduatioiis `upon :index plate or memberl 9 may be read"y duringF use of thel improved Scale. A similar" aperture muv' he produced'in the 'opposite wall of thecasingr portion 7 for the View of graduntions produced upon the rear' or obverse- Sidc of the plate or .member 9.

i4 represents a platter or pan at the end of the elongated base portion opposite to which the casing portion 6 rises,`such pan or platter being supported h v a 'spider 15 carried hy an arm or part 16 horizontally extended above that/end of the casing portion l and integrally connected with n draft member 17 which` i; supported for vertical movement within the chamber or .hollow of the eyliiidricaL csing portion 6 and= as shown in. Fig. 2. isvmade in elongated rec- .tangular fornifhaving the nrni or part 16 project-ing from the-.central portion of its lower hai'. its Side members 18. 18 being eX- tendcd upwardly from such lower har in spaced relation. and heing'tied or connected together at. their upper ends by the upper transverse bar 3ft. While their lower ends are caused to depend bel-ow said lower bar VTand are extended within the chamber 2 of Y fthe casing' 'oase' and made to diverge. as inv-'dioat-ed at. it), 19. The divergent lower porflattened lower or base.

tions 1.0,f19 of Asaid draft member are 'pro-V vided with :pivot pinsl 20 20, as indicated Figs. -1 and 2. whereby pivotal connection is, afforded with the adjacent end Qf al lever" member 22, horizontally extended within;

`the chamber and .comprising integrallyjoined side portions 'or bars 21. so speced as to pla)1 adjacent-'tothe opposite Walls ofthe i' base 1 to which walls they are pivoted at 'the end opposite to the draft member '18, as

.shown ali-24 in Fig. 4. The sidebars 'or x portions. 215521 have their ende whichare.- pivotallly connected with the casingpaced apart as shown nt. 23 ,at-such a distance one' from-the otheras will permit the locationof a dnshpot 25 between them. Said'dash potY beiiigof cylindrical formation, closed at it bottoni and having it` open top sealed liv the flattened top plate of the base vportion l ot the scale frame whereto euch. daeh pot ie Securely attached- 'by screwA or the like l passed through ap'erturecl lugs 251" upon the y dash pot and engaged with Said top wall or plate of the base 1. l

The pivotal connections,v 230i -the lever member 22, and Aalso the dash pot '25 are verticallj,7 elined beneath the pan or platter 14'.

nndQ/T represents, a 'pendent rod or stein pivi otall)1 joined at. 28 with vthe extremity of thel arm '16 of the draft nieinber 1T. extended down through `:en aperture in the top plate of the casinmhase l and playing axially within said aslipot 25, wliere1n said stem or rod has connection with -a piston orsepg tuin^26 which is caused to be forced down- .Ward within said dash pot in unison with the vdescent of the pan or platter 14 during the weighing operation. The septum 26 is prof vided in its upper surface with an annular groove or recessf) surrounded b v a. raised edge wall. as clearly indicated in Figs. land el, iii-which recess; dust and foreign matters tuin to movement ofthe latter, and by this' means I ani enabled to dispense with n close joint between the perimeter of the septum and the Wall ot' the dash pot evliruflenA and to leave a narrow Space or clearance lbetween these parte as indicated at 32 in'FigS. l and Il', for the gradual escape or' air from the cylinder during` descent of the septum. l); thisI :infringement of the parte friction due to centact'of the sept-um with the dash ptwall l the support. within said casing portion 6 ot is kalso avoided, with resultant increa'sedaccuraoy. Whlle at the `same time wear of the parts IspaCtICally eliminated. By finishing "the perimeter of the septum Q6 with a partispherical surface struck with 'a 'radius from the cent-er of the septum, as indicated at 31 in Fig. 7. and by piyot'ally connecting the stem or rod .27 wlth the arm 16 of 'the draft member asaforesaid, greater freedom of increment of the septum is atforded,"and by producing an annular channel around the central p'art of the eripheral surface of the septum, es indicat at 32 in Figs. 1 and 7. au air packing is alforded 'which is desi ned to impede the escape of air from the ash pot during descent of the septum.

The lever member 22 affords means whereby the lower end of draft member 17 is .guidedfor vertical endwise movement. and whereby said member 17 is prevented from oscillatory or swaying movement at its lower part. and at the upper part of said member l?. within the upper part of the chamber of the casing portion 6 l provide a similar 'lever member 37, made in U-shape, the transverse bar or part. 36 thereof being centrally aperw tured as indicated in Fig. 1. for engagement with an upstanding pin central upon thc upper transverse bar 3401:' the draft member. w iile the arms of suoli U-shaped lever mem- A ber 37 are extended from said draft member in a direction reverse to that wherein the lever member 22 is extended. such arms of member 37 being directed .in spaced rela tion across the upper part of the casing portion 6 and being pivotally supported therein at 38. `Member 37 is thus caused to operate with the draft member similar to lever member 22 for its support and for the prevention of swaying or oscillatory movement.

.To lessen. friction, the eye 36 is provided with a convex or rounded under surface contacting on the transverse ba'r 3l of the draft member.

The fixed circular wall of the casing portion 6 has a bearing l0 produced in horizontal alinement with ya similar bearing 40a upon the removable wall 8, and 4Q represents Aa pin or stud extended transversely across said 'casing portion 6 having one'cxtremity.

vas 41, reduced and screw-threaded and fitted accurately in the bearing 4.0 at the fixed wall of said casing portion, and provided with a nut 44 at the outer side thereof, a shoulder 3 being produced on the pin or stud. adapted to be drawn into secure engagement with the inner`face of the bearing 4() when the nut is tightened. so as to afford 'a substantially rigid mounting for said pin or stud at that side of said casing portion 6. The pin or stud 42 is of such length 'that its oposite end finds secure support 1n the bear ing portion 40"* in the removable wall 8 of the casing. Such pin or stud serves' for spaced bearing or supporting members 45. 45, which as herein shown are in the natilre of disks having rounded or curved peripheral bearing surfaces struck with like radii, and secured against turningl and longitudinal shitting movement'. upon the pin or stud tif by means ot` set screws 46. Between the hearing or supporting members 45. l5 the pin or stud supports spaced fulcruin disks or members 4f?. 4T.- separated from each other by a spacing sleeve so as to stand adjacent to the inner or adjacent faces ot' the bearing or supporting disks or members l5, and adapted for tree and independent turning movement upon said pin or stud 4;). These fulcrum ldisks or members 47. 4T. are made in diameters slightly greater than the bearing or supporting disks or members 45. 45., so that their peripheral portion-s are caused to project slightly above and around the rounded peripheral bearingsurfaces of sa id disks or members l5, 45. as clearly shown in Figs. 5 and 6. and said projecting peripheral surfaces of the fulcrum disks or members are made curved 'or lrounded in cross section, as clearly shown in the drawings: and are adapted for rolling contact 'against the undersides of elongated flattened tracks or projections 50. 5t). produced upon 9 1 or extended from the opposite sides of the upper part of a pendulating lever member 51, which is ext-ended downwardly between said fulcrum disks or members 47, 47 and is apeitured as shown at 52 for the passage of 'the pin or stud 42 and sleeve 48 thereon. and to permita certain extent of swinging morement of said lever member in unison with themovcmcnt of the draft member. during which movement the tracks or projectionsA 5), 50 roll around the peripheral surfaces of the fulcrum disks or members 4T. 4T. .\t its upper part, the lci'er member 5i is lprovided vwith integral yspaced lugsI 555 bctwccn which is extended a knife 'edge 54 or its equivalent. wher-"cto is piyotally coupled the upper end ot' a connecting member shown in detail in 'Fig'. S and whichcomprises. as therein shown. two resilient or eprint'.r metal strips 56. with extremities 5T. 5T laid closely adjacent to each other or secured together and perforated. while their central portionsv are bent or bowed outward away from each other and are perforated for thc passage of an adjusting screw 58. the head cud whereot is collared in the aperture of one such strip. while its threaded extremity has adjustablc screw ei'igagemcnt. as indicated at 59, with thc central aperturey of thc other strip 56. in such a way that turning mori.`- ment of the screw will draw the bent or bowed central portions ot' said strips V56 toward one another or tome them apart. and thereby vary the length of the member 55. As stated. the. apertuled upper end of this .lower a ertured end connecting member 55 is hung upon the knife edge 54 of levermember'l, while the of said member depends below tie forks53 and has pivotal c0nnection as indicated at 57 in Fig. 1, with a knife edge mounted between lugs central u on the draft member a inement With the connection of arm 16 therewith, so that the vertical movement or Said draft member under the influence of the load rested upon pun or platter '14k is communicated to said lever member 5l to swing the same pivotally and cause the tracks or projections thereof to traverse the peripheral surfaces of the fulcrum disks or members 47, 47. F or the accurate support ofthe lever member 51 duringc,r such swinving or rocking movement, flexible Suspenders 66 are provided which7 as herein shown, are in the form of thin flexible metal tapes or strips extended at opposite sides of the projections or tracks 50, 50, their lower ends being 3- cured by any approved means to lugs or extensions 65, outwardly directed from the lower or forward ends of said tracks 5U, while the upper parts of such Suspenders traverse the curved or rounded peripheral surfaces of the bearing or supporting disks or members 45, l5, and 'are attached thereto at their extremities by means of clips 67 or the like.

The tracks or projections't), which rest upon the fulcrum disks or members 47 are of such widths, measured Atransversely that they do not overhanrz the peripheral surfaces of the bearing or supporting members 45 to any material extent, whereby it will be seen that said tracks or projections are' prevented from pressing or bearing upon the Suspenders tt, 66 which. as stated are located outside such tracks. As shown herein, the radial. difference between the bearing and ulcrum members 45 and L7 is also substautiallf,v equivalent to half the thickness of the tapes or Suspenders e't, so that friction is eliminated' as much as possible, and a, high degree of accuracy .is attained in the operation of the improved weighing scale. .\t its side opposite to the 11i-gs 53 where with the member is coupledyhe lover member 5l carries a threaded pin or stem 6l, whereon is adjustably supported and held by means of a lock nut 63 or the like, a. counterpoise 62, capable of operation to counter-balance the draft means and connected parts of the scale. and at its lower part, said lever member has a similar pendent threaded pin or stem 7 t), whereon is adjustably held a poise '71, which is adapted,` ;lurv ing the swinging or rocking movement of the. lever member, to exert a gradually i11- creasing leverage by reason of the travel of the vtracks or projections 50 along the peripheral surfaces of the fulcrum disks or members 47 so as to be capable of balancing' 17 above and 1n I tgradnally' increasing loads-upon the pan or platter 14.-. The upper part of the lever member 51, is also provided with an integral upwardly directed part 74,. to opposite sides `whereof are aixed spaced strips 73 connected with. the lower end of anindex'or pointer 7 between the of the lever member 37 and Within the sector-shaped casn portion 7, so as to be adapted to play' over t e index plate or member 9 therein for cooperation with the graduations Il1 and 12 thereon for the Irindi'catio of the weights and prices of the various loads imposed upon the parror'platter. As shown in the drawings, this pointer 72 has a part 79 coperating with the weight graduations 11, and similar parts 78, 78, for cooperation with the several price graduations 12. The pointer 72 is also counterbntanced by a. Weight 75 at the lower part of the I lever member 5l, held on a, stem or pin 75 l elined with the pointer across the point of l support of the lever member upon the ful- ,l crum disks 47.

In the use of the improved weighing scale.

i the draft member is caused to descend under the influence of the loa-d upon the pan or platter, and communicates its movement with a minimum ofv loss and friction to the lever member: 51, whereby the index member or pointer 72 is. caused to traverse the gradua'tions eupon the member 9 for the indication of the Weight and price, if the price. t is to `be ascertained. During this operation the septum 26 traverses the daslrpot 25 in a gradual and regulated manner, without l lundue friction, so that vibratiori of the parts Il is also reduced to a minimum, and the ara rangement of the counterpolse 62 for move l ment during the weighing operation through inn arc as near as possible to a horizontal i plane interstwting` the point oi' support of the pendulat-ing lever member l upon the i fulcrum disk or members 4T assures accurate ctmnterbalancing of the draft memberl and i connected parts of the scale. while the cm s p loyment of the poise 7] pendant from the l lower part of such pendulating lever mem oer permits movement of such poise through an arc or part wherein it exerts a gradually increasing leverage such as is desirable for the attainment of the bestresults and for affording t-he greatest range of capacity of the scale. The construction ofthe improved scale is also of material advantage by reason of its simplicity and the readiness with which it may be manufactured, assembled and repaired, and the adjustable connecting f member 55, if the same be employed. permits` of readily and conveniently adjusting the connected parts as may be desirable for ab taining accuracy of operation and the bearv .I mg or supporting disks or members 45, 45 1 to be turned upon the pin or stud 42 as ma lib ting the initiall position @er member 5.1- with ree ii', disks or members 4&7,v de'l "to Zer0. vIt 'will also be obvious` from-tlm"nbovedescription that theimpioved x'v'eghins ale constructed accorddale" having' a nlcrum member; pport a load to be weiipjlid; edlever connected with sucll 1' means 'and counterbal-V forA excessive Weight.,` theiof 'fting Contact with nder the influence of weighing operation adapted 'tor exert gradually increasing fore'ethereonas the load is increased dur- "le having fulcrum Lport a load to be 'de lever connected. with Pl? for shifting desc fulcruinfrn Itribe rid Fthe i'niuence of the ing operation, and

, irldlly increasing force Scale having e .fulcrnm lever havingrocking siippliiztiiipon# ritmi member and providedmiitlia i'depted to exert agrad iiallxiiiicesixitgftrc upon the lever vwhen the samelis'srock the fulcrumv memben dringlitheeweigl g operation, lmeans for smpipeiing nectedmniithdlhee ener it@ rock the same, and n coluirerpoiselconnected with the lever ad! jacent to a horizontal plane traversing the pgintgggfrtippoeteo me lever upon the ful- Crum gnellibrse 4 fei livin cale lmv`ri,g \f;a fulcrnm member spendedelever havingroclnng -suppqig u ons-,thexfulcizum member and promg fgcelznpon the lever when bei' for supporting load .to vbe weighed connected 'withl the lever' at one slde of its point of Ltp/ontlie fulcrum member and adpteqlztnCommunicate rocking' move- 55 ment gaeigetewttrrng the weighing operaciplesandspirit of theV vice herein` set *forth dm'itli vsuch lever an ieansand adapted movement over theit such lever and adapt-z the load is increased durvided peieelaitleqeted to exert a grad.

Q dinbon-the fulcrni'- memegliing operation, meansv tion-,fand av counterposeeonnec'ted withf-the lever= -at the (ip positelsde of itsfpoint oi support Vupont e flcrum member` andv nld- Q point of supportof saidleverfjupon Sad, fulcrum memberQ- 1 1H 5. A weighing sc ale having auulri'rmr `membere means to support a"j loadto be weighed, a draft member vertieallyminovf; able at one sideof the and, actuated from the load means, a counterpoi'se tol compensate for, lexcessive Weight of the load Supporting means and 'draft me mber, asu'spended lever having rocking support u om the fulcrum member and connected-wit the draft meinber, land a poise connected with said suspended levervand adapted'toexert a'grad-- n ally increasing forcethereon -whenv the 1elver is rocked -u von thefulcrummember durving the welghing. operation. .6. A weighing scale having. afulcruxn member, 1i 1eans to supportv a loadto be weighed, a vertically movable draft .v member positioned at the-side ofthe fulcrum memberl Yand'v having a laterally.` directed arm connected-with L. the load supporting mean means' for, compensating'. for excessive weight of. the draft member and said load supporting means7 a. suspended lever having rocking support v upon the fulcrum member and connected Withthe dra-ft member, and a poise connected with said suspended. lever and adapted to exert 'a' gradually increasing force` thereon when the le.-

vver is `rocked upon thefulcrum nie'mber during the -Weighing operation. .v 7. A -Weighing scale having a fulcruin member,v means to support e load to be weighed, a.' draft :meinbervertically movable at one side ofthe fulcrum- -meniber and actuated-from the load'supporting means`- a .suspended lever havin(1r rocking vsupport upon the fulcrum member 'and Aprovided with L poise adaptedgt'o exert a gradually increasing force upon such lever vben the same A1s rocked, durlng' -the vweighing:operation, a connection vbetween .the draft meniber and the lever atv onefside of thejpont of support of suchLleve-r uponthe fulcruin member for communicatin f' rocking' move'- rnent. to the leverl during t efweig'hngopv eration, 'and a counterpoise at thesideiof A the f\1lcrum memberfo posite-'to thefdra'ft member and connecte with .the lever 'a1 jacent to a horizont-al plane int ers'ectin thev point of support ofthe lever'upons'ai' ful crum member.

r ]acent to a horizontal planetraversngsugb vcrum disks supported Vin 's'paced`relation thereon, bearing members ad ns'tablvl'supi` ported upon said `sbat,'flexib e Suspenders arrangedtol mnd upon said vbea-ring mem'- hers. and a lever connected with said sus- Penders and having opposite sides engaged .fornrocking support upon the respective-fulprovided with la pendent weighted part extended in alinement with vthespace between said fulcrum disks.

z9.- A7"Weighing scale having a fulcrul'n f-member'.provided with a curved bearing sur A face, a .lever :su .20

acme lever supported for rocking' movementliavlng a. bearing Asurface adapted to traverse "said curved bearing surface of the A fulcrum member when the lever is rocked vand provided with a weighted part operating as a poise,val`nd` suspending means for said lever operablev to compel true rolling contact ofsaid lever upon thecurved bearlng surface of the fuleru'l'n member when said lever is rocked.

10. A weighing scale'having a fulcruni member provided with a curved bearing survported` for rocking vmove- -ment havin a varing surface adapted to concentric vvitlifthewcurved bearing surface of the fulcrum .member whereon said iexible bands are adapted to Wind.

' v111 -A i Weighing scale having a fulcrum member provided-with a curved bearing surface, ya lever isupported for rocking mevement -havingua bearing 'A vsurface adapted to traverse said curved bearing surface of the f ulcrum membervwhen lthelever is rocked and provided with a weighted part operating ,as a`-poise,.afnd 'suspending means for said lever including lflexible bands having ber, w

connectionrwith-t'he lever at opposite sides of the Afulcrum member, and relatively adjustable curvedpa-rts concentric with the curved bearing surface of the ulcrum mem- 12. A weighing scale vhaving a fulcrum member provided with a curved bearing surH face, a lever supported for rocking movementi' having a bearing surface adapted to traversesaid curved bearing surface of the.

fulcrum member when the lever is'rocled and provided'fwith a 'weighted part operating as'afp'oise, and suspending means for said lever including a flexible band coupled with the-lever, and a part curved vconcenf trically 'With'the' curved surface ofthe fulcrum member Whereon said flexible band is adapted to Wind, theyradius of said last mem tioned curved part being'less'than the radius o f the curved surface of the fulcruin member by'fo'ne-half Aof ythe thickness of said `flexible band.

13. A weighingscale having afulcrnm member 'provided witlia curvedbearing .surEw hereon said' flexible bands'lare held tol ing as a poise,

said lex'ernmcludmg a part. curved colleen-- Weighted atits lower y during of said members having a surface traversed members y Y 17. .A weighing scale having a; fulcrum member, a pendulating lever 'weighted at its Aportin.

face, a lever supported for rocking movement havin traversesai curve'd bearing' surface of the fulcrum member when the lever is rocked and provided with and suspending means for trically Withthe curvedsurface ofthe 'ful- Crum member, adjustable meansfor holding said part-in stationary position, and a-ffl'cxif ble band connected withsaid curved part and .adapted to wind thereon andfj having connectionwith the lever. Y

14. A weighing scale having two men,

bers, one ofwhich is a fulcrum member and .the other 'of which is a pendulating lever part and` supported-'for rocl'ring movement'upon the fulcrum meml ber, one o f A said members havinga` curvedH bearin surface adal ted for-'rolling contact withl t e'other. mem r during the rockin movement of said lever, and a flexible ban affording connection lbetween the members rocking movement of said lever, one

by said band curved with a radius less than that of said bearing' surface by one half of the thickness of said'band.

l5, A weighing scale having a ulcru'm member, means to support a load .to be weighed, a pendulating lever Weighted at its` lower end and actuated from said load supportmgmeans and supported for. rocking movement upon said fulcrum member, 1n#

dex means including a member carried bysaid lever and a graduated scale traversed, thereby, and a counterbalance for said index member carried by thel lever.

16. A-weighing scale having a fulcrum member, a pendulating lever weighted at its lowerpart and supported for rocking movement upon said ulcrum member, loa

lsupporting. means, 'a draftmember having Aa vertically directed part coupled with-the lever to communicate rocking. movement thereto `and provided with a laterally directed arm' operatively connected with the load supporting means, and means for compeiling rectilinear movement of sald draft lower part and supported for 'rocking :nove-` ment upon said fulcrum member, v'load Supmeans,ra draft member having v vertica ly, directed part cou led' withthe lever to communicate ,roclii'ng movement thereto'andprovided with a 'laterally direct,-

ed arm operatively connected with the load supporting means, and' a pivoted lever coupled wi'th tsaid draft member and operable to compel rectilinear movement thereof.

1 8. A weighin memberga-pendu ating lever weighted at its a ,bearing surface adapted to a weighted. part operatscale having a fulcrum l lower part and supported for rocking move.- l member 'and operable to compel rectilinear ment upon said fulcrum member, load supmovement thereof.

porting means, a draft member having a verl In Witness whereof l have hereunto signed tic-ally directed part, coupled with the lever 5 to communicate rocking movement thereto Witnesses.

and provided With spaced parts and Wieh a laterally directed arm operatively conneet- WILHELM SIMONSSON ed with the load suppozlng means, and a l lVitn'esses: pivoted lever having spaced parts pivotally V. E. LAWSON,

l0 coupled with the spaced parts of said draft l K. R. HARKEY.

my name in the presence of two subscribing c 

